Faith is running, perhaps into madness, perhaps to freedom.
Either way, someone has to die.
It all started Michael; her best friend, her only friend, her beautiful experiment that was trapped in a frozen prison for years. When she learned that he was going to be taken away, she decided:
If she can't have him, then no one can.
So Faith did what any mad scientist would do:
Set Him free.
Turned out that He was a demon from Hell and his release had caused both for the Big Guy to hunt him down and for Faith's whole world to drown in a sea of red.
Go figure.
Now Faith and Michael are on the run from both the government and the supernatural and failure to survive means a one way trip to the eternal torture chambers of Hell.
And let's be real.
No one wants to go there.